<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>计算属性实例</title>
</head>
<body>
    <script src="../js/vue.js"></script>
    <div id="app">
        <p>原始字符串: {{msg}}</p>
        <p>反转字符串: {{msg.split('').reverse().join('')}}</p>
        <p>计算属性反转: {{revMsg}}</p>
    </div>
     
    <script>
        let app = new Vue({
          el:"#app",  
          data: { 
            msg:'Hello Vue.js!' 
        },
        computed: {
            revMsg:function(){
                return this.msg.split('').reverse().join('')
            }
        } 
    }) 
    </script>
</body>
</html>